Lantern



W. S. HAMM.

LANTERN. APPLICATION man JULY 11. 192:.

1,41 5,634, Patented May 9,1922.

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rumors, s'ssreivon T0 was Arms a forming the subject of the application or gatent of William S. Hamm and Frank A. chuetz, filed July 8th, 1919, Se-

riaL-No.-309,334. I r

The-object of the present invention is to provide, under all conditions an adequate supply of air from the upper part of the lantern body to maintain combustion when the theirv normal upward direction; and it consists broadly in a lantern body havin air induction ports above'the up er end 0 the globe, and a perforated shiel located within the body and-facing such ports.

' A preferred embodiment of the invention is hereinafter described, and is illustrated in the accompanyin drawings, in which Specification Ltten Patent.

Application tiled July 11, 1921. Serial No. 483,789.

currents through the body are reversed from Fig. 1 is a side e evation of t-he"lantern,-

the upper portion thereof being shown in, central vertical section; and

Fig. 2 is a detail sectional view on the line I 2 2 of Fig. 1.

burner, as 11, the base ring being The lantern comprises a base ring 10, adapted to receive an oil font carrying a provided with air induction ports 12. A transparent globe 13 is seated on the base ring, and is surmounted by a dome, generally designated by the numeral 14 and provided with the usual depending and outstanding breast 26. An inner dome 15 constitutes. in this instance, a globe-holder, and is urged downwardly by a spring 16 reacting against the top of the outer inner'dome is somewhat contracted, being flanged inward, as shown at- 27, and discharges the' vapors of combustion into the chamber of the outer dome, from which they escape through suitable openings. The globe is surrounded by the usual frame 17,shown as formed of wire rods and secured to the base ring and depending therefrom to form a foot piece 18. The dome is hinged to the dome 14. The top of the] Oavhen required, when the (dent height to afford the required protection ."from strong winds.

Patented May a, 1922:

frame 17, as at 19, and secured in closed sition by a latch 20. v

he lower portion of the side walls of the nner dome 15 is proyided with a series of air induction ports 21 of ample capacity to provide a supply of air to support combustion in the event of the reversal of the currents within the body, the giving of si designated by t within the dome upwardly-and inwardly frpm the wall thereof in front low the contracted portion 27. In practice these orts are arranged in.-'annular"series. exten ingentirely ar'oundthe dome, and consequentlythe shield is annular in form.

nals. A shield, generally e numeral 22, is located U on a reversal\of the currents through.

the amp, from their no 111 upward direction, air' enters the 'ipor "21 and, passing over the shield, desc nd e-- and supplies the necessary oxygen to naintain the flame. The upward andinward inclination of the shield, however, preven stron wind cur rents from blowing down'upon t e flame and extinguishing it, as mightbe] the case even though the currents were not reversed.

Under some circumstances-an imperforate shieldQof this character will" preventfsuiiicient, air reaching the flame from above,

The present invention wercomes= this-difiiculty by eriforating the shield so thatsome air will escend without being required to first pass entirely over.-

In the preferred form of construction, which is shown in the drawings, this perforation is secured by employing two annular shield plates, one of them, designated by the numeral 23, extending u wardly and inwardly from the wall of t e dome and facing the ports 21 ed above it,it's and being of slightly greater diameter than the upper margin of the lower shield ring, thus providing an annular slit-between the two through which a small quantity ef 'a-ir may enter but which will. nevertheless, he

gix'en an initial upward direct-ion in order that when the wind is strong it will not blow directly down upon t-he flame with sufficient force to extinguish it. The upper shield ring 24 preferably extends above the ports due to wind conditions or.

15 and extends obliquely the other, 24. being mount-f lower margin overlapplng Gin of the ports21 terminating belube shield .the low 1' 21, thereby giving the strong entering air currents an upward initial direction.

The uppershield ring 2% may be supported in any suitable manner, as by a plurality of legs 25, as many being employed as may be deemed necessary, these legs being seated eitherupon the lower shield-ring or upon the wall of the dome.

While the construction shown and described is preferred, and, so far as new advised, is the inost eiiicien't, the invention is of suiiicient scope to include any lantern structure embodying upper air induction ports and aperforated shield for guarding the heme from strongair currents, while in suring an ample supply of eir from above for suppo'rtinq combustion when the supply from below becomes inadequate. Various changes in detail may be made within the range of the invention.

I claim as my invention-- 10 In a lantern,'in combination, a dome having a series of lateral air induction ports, and a perforated shield within the dome and facing the induction ports the opening in being above the induction ports, end of the shield making a substantiully air tight Contact with the dome and thefzop of the shield being free to permit air currents from the ports to pass over it.

In a lantern, in combination, a dome having an annular series of lateral air induction ports, an annular shield extending upwardly from the wall of the dome below the ports and being inwardly inclined, and a second annular shield ring located above but spaced apart from the first-namedring, and arranged to permit currents entering ihe induclion ports to pass over its upper margin.

3. In a lantern, in combination, adome having; an annular series of lateral air induction ports, an annular shield extending upwardly from the wall of the dome below lhe ports and being inwardly inclined, and a second annular shield ring located above but spaced apart from the first-named ring", adjacent margins of the two rings overlapping the upper roar-gin theupper ring being free to permit an" curreI'ii-s from the induction port-s to pass over it.

i. ln a lantern, in combination, a dome,

iyneeee havin lateral air induct-ion ports, a shield extenc ing upwardly and inwardly fronrthe dome well below the ports, and having an opening guarded by an upwardly and inwardl'v inclined wall, the upper margin 'of 'the shield being free to permit air currents from the ports to pass over ii.

5. A lantern having, in combination, a dome provided with a vapor outlet, and an inner dome having its upper end contracted and provided with a central flue opening, its side walls being apertured to form induction ports, and a perforated shield extending upwardly and inwardly from side walls of the inner dome and terminatinn above the induction ports.

6. A lantern having, in combination, a globe, and a dome extending upwardly from the globe and provided at its upper end wilzh' an outlet for vapors and at its side walls with induction ports, an inst-ending flange between the outlet and the induction ports, and a perforated shield extending inwardly and upwardly from the side walls of the dome below the induction ports and terminating above such ports, its upper margin being free for the passage of air currents there over. 7

7. A lantern having, in globe. and a dome extending the globe and provided at an outlet for vapors and at its side walls with induction ports, an inst-ending flange between the oulet and the induction ports, and perforated shield extending inwardly and upwardly from the side walls of ihe done below lhe induction ports and terminating above such ports, its upper margin. being free for the passage of air currenls thereover, the lower margin of the upper ring overlapping and being spaced apart from the upper margin of the lower rin in a lantern, in combination. a, globe, a dome surrounding the globe and'having air combinu'iion, u upward v from induction ports adjacent its lower end,

shield extending upwardly and inwardly from the side walls of the dome and facing the induction ports and being epertured above such ports, the upper margin of the shield being free to permit the passage of air currents thereover.

WILLIAM S. HAMM.

the

its upper end with 

